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FIELD REPORT SITE REMEDIAL WORK 1 On Monday, September 14, 1992, the TreaTek-CRA Company (TreaTek) mobilized the crew ' and equipment required to complete Task 1 as outlined in the proposed work plan for the Major i Mart site in Stockton, California Activities conducted at this time for Task 1 included demolishing and disposal of the canopy, locating, and capping fuel pipelines (to within one foot ' of the building foundation), capping and disposal of remaining fuel pipelines, and sample collection from the pipeline routes, the tank excavation, and the soil stockpile for analysis of Total Petroleum Hydrocarbons as Gasoline (TPH-G), Benzene, Toluene, Ethylbenzene and ' Xylene (BTEX) and Total Lead. Initial site activities included a safety meeting, locating utilities and reviewing scheduled ' activities The florescent light ballasts were removed from the light fixtures in the canopy and placed into a drum which was left onsite The canopy was then dismantled and the frame was cut into pieces The canopy pieces were hauled offsite to a scrap metal recycler ' Fuel line removal on began September 15 at the southeast corner of the tank excavation All g P of the removed pipelines appeared to be in good condition with no visible signs of leakage The ' two exposed lines were followed south across the west end of the two former fuel dispenser islands closest to West Lane, then toward the southern most fuel dispenser island nearest to Alpine Avenue The fuel lines ended approximately fifteen feet from the south island and had tape over the ends During the course of excavating the above described two pipelines, four additional (older) fuel lines were discovered and removed All the fuel lines, with the exception of approximately forty feet uncovered after the recycler had left, were cut and hauled offsite to ' a scrap metal recycler. The remaining forty feet of pipe is stockpiled onsite ' Soil samples were collected where the pipeline branched off to connect to the former fuel dispenser islands along West Lane, at the pipeline's 45° connection, at the end closest to the south fuel dispenser island and below the northern most fuel dispenser island located along West ' Lane for a total of five soil samples from along the fuel dispenser pipeline route (see Figure C-1) Field jar head space readings of the soil samples below the pipelines were taken utilizing a Foxboro 128 Organic Vapor Analyzer (OVA) The soil below the northern island ' along West Lane (PL-5) presented the only indication of volatile organics below the removed fuel pipelines ' All of the samples collected from beneath the removed fuel dispenser pipeline were collected from the backhoe bucket The backhoe was used to retrieve the soils from the locations shown on Figure C-1. A sample was then collected from the soils within the backhoe bucket by hand ' driving two laboratory cleansed stainless steel tubes into the soil after first removing the uppermost six inches of soil One tube was sealed, labeled and stored on ice for holding for analysis while the second tube was utilized for OVA jar head space readings. A tabulanzed listing of the OVA jar head space readings are included in Table C-1 nKCW'r&),AREG3QTR WP C - 1 H112192